Patents by Inventor Marshall Canaday

Marshall Canaday has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Desoldering method and apparatus with minimum vacuum on-time control
    Patent number: 5579982
    Abstract: A control circuit for a vacuum desoldering apparatus includes a timing mechanism to ensure that vacuum is maintained for a necessary minimum amount of time, even if a vacuum actuation switch of the desoldering tool is prematurely deactivated by the operator. If the operator presses the vacuum actuator switch for a period of time longer than the predetermined minimum time, vacuum will flow until the switch is released. However, if the operator actuates the switch very briefly, that is, for less than the predetermined minimum vacuum actuation time, the vacuum supply is maintained in an activated state for the predetermined minimum time.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: December 3, 1996
    Assignee: Pace Incorporated
    Inventors: Charles H. McDavid, Jr., Marshall Canaday, Louis A. Abbagnaro